“Tom, if it ain’t unregular and irreligious to sejest it,” I says, “there’s an old rusty saw-blade around yonder sticking under the weather-boarding behind the smoke-house.”
Mark Twain. The Adventures of Huckleberry Finn
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IRRELIGION, n. The principal one of the great faiths of the world.
Ambrose Bierce. The Devil's Dictionary
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seen any thing that betrayed him to be unprincipled or unjust—any thing that spoke him of irreligious or immoral habits.